Finding the Fourth Proportional to 1,063,010,513.70, 1,594,515,770.55 and 416,778,257.70
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Solution
The fourth proportional to 1,063,010,513.70, 1,594,515,770.55 and 416,778,257.70 is: 625,167,386.55
Step by Step Solution
- Step 1: Write the proportion equation
1,063,010,513.70 : 1,594,515,770.55 = 416,778,257.70 : x - Step 2: Convert to fraction form
1,063,010,513.70/1,594,515,770.55 = 416,778,257.70/x - Step 3: Cross multiply
1,063,010,513.70x = 1,594,515,770.55 × 416,778,257.70 - Step 4: Simplify right side
1,063,010,513.70x = 664,559,504,725,001,984 - Step 5: Solve for x
x = 664,559,504,725,001,984/1,063,010,513.70 - Step 6: Final answer
x = 625,167,386.55
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.